Apple released QuickTime 7.1 last week, accompanying it with their now-typical brief release notes. Allow me to republish them here in their entirety:
QuickTime 7.1 is an important release that delivers numerous bug fixes, support for iLife ’06, and H.264 performance improvements. This update is highly recommended for all QuickTime 7 users.
However, there seems to be much more under the hood, which I’ve not had a chance to poke at. Fortunately, Karl Peterson uncovered the “What’s New in QuickTime Player” page in QuickTime’s Help. He writes:
Some new export features of QuickTime Pro are available now in iMovie too. We can now deinterlace the exported movie, for example, when using Expert Settings to export from iMovie to QuickTime.